1. Marc Leibowitz May 12, 2010

2. “Wait, don’t I know you…?” 2001: StumbleUpon founded in Calgary 2006: 1M registered users 2007: Acquired by eBay 2009: Bought back from eBay by Founders & Investors 2010: 10M regusers, 115K FB fans, 600M stumbles/mo, 1B total ratings, 45M unique URLs indexed, 50K discoveries/day #1 social media traffic referrer in US (#2 worldwide) (1) (1)StatCounter(April 2010)) (Confidential)

3. Find Your Audience: StumbleUpon Marketing Tools StumbleAds (Sponsored Stumbles) Su.pr StumbleBadges Net of spam, dead links, etc. (Confidential)

4. StumbleAds– Sponsored Stumbles StumbleUpon delivers a targeted audience directly to your content and increases your viral potential. More Traffic Exposes your content to StumbleUpon’s millions of users- bringing people who match your targeting criteria directly to your site—no click-thru necessary! Cost-effective Pay only for actual views of your site and limit each campaign to a maximum number of visitors/day. Set-up in Minutes Specify your web-page & target audience and start seeing traffic immediately.

5. “There Is No Ad” 20x more cost-effective than display ads! Up to 5% of Stumbles are paid “seeds”

6. Go Viral 65% organic uplift!

7. Su.pr—Not just another “URL Shortener” The first free content syndication platform designed to get you more traffic. More Qualified Traffic Every Su.pr URL exposes your content to StumbleUpon's highly engaged user community. Greater Insight Track the performance of your posts in real-time. View your traffic, clicks, referrers, Stumbles and retweets. Easy to Use and Optimize Identify & schedule the optimal times to post — then syndicate with a single click to Twitter, Facebook & StumbleUpon.

8. Whuuuuut?!?! Kaaaaa!!! 73% increase!

9. Time for Traffic 6300% increase!!!

10. Badges—Get Discovered! Pop-up Enable users to discover and rate your content so other like-minded Stumblers can find and interact with it

11. High Quality Content is Rewarded Su.pr StumbleAds Syndicate to twitter/Facebook; automatically seed your content in StumbleUpon. Target content to your desired audience. Highly rated paid content receives free organic traffic. StumbleBadges StumbleUpon Recommendation Engine StumbleBar

12. Keep on Stumblin’ ml@stumbleupon.com Net of spam, dead links, etc. (Confidential)